<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<c:out value="Good night"></c:out>
<br>
<c:set var="name1" scope="request" value="1"></c:set>
<c:if test="${requestScope.name1>0 }">
 c:if标签中内容
</c:if>
<br>
foreach迭代标签：
<c:forEach begin="1" end="10" step="2" var="eachVale">
<c:out value="${eachVale }"></c:out>
</c:forEach>



</body>
</html>